Dooble
dooble_cryptography.h
1 /*
2 ** Copyright (c) 2008 - present, Alexis Megas.
3 ** All rights reserved.
4 **
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6 ** modification, are permitted provided that the following conditions
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8 ** 1. Redistributions of source code must retain the above copyright
9 ** notice, this list of conditions and the following disclaimer.
10 ** 2. Redistributions in binary form must reproduce the above copyright
11 ** notice, this list of conditions and the following disclaimer in the
12 ** documentation and/or other materials provided with the distribution.
13 ** 3. The name of the author may not be used to endorse or promote products
14 ** derived from Dooble without specific prior written permission.
15 **
16 ** DOOBLE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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26 */
27 
28 #ifndef dooble_cryptography_h
29 #define dooble_cryptography_h
30 
31 #include <QByteArray>
32 #include <QObject>
33 #include <QPair>
34 
35 class dooble_cryptography: public QObject
36 {
37  Q_OBJECT
38 
39  public:
40  enum HashTypes
41  {
42  KECCAK_512,
43  SHA3_512
44  };
45 
46  static int s_authentication_key_length;
47  static int s_encryption_key_length;
48  dooble_cryptography(const QByteArray &authentication_key,
49  const QByteArray &encryption_key,
50  const QString &block_cipher_type,
51  const QString &hash_type);
52  dooble_cryptography(const QString &block_cipher_type,
53  const QString &hash_type);
55  QByteArray encrypt_then_mac(const QByteArray &data) const;
56  QByteArray hmac(const QByteArray &message) const;
57  QByteArray hmac(const QString &message) const;
58  QByteArray mac_then_decrypt(const QByteArray &data) const;
59  QPair<QByteArray, QByteArray> keys(void) const;
60  bool as_plaintext(void) const;
61  bool authenticated(void) const;
62  static bool memcmp(const QByteArray &a, const QByteArray &b);
63  static void memzero(QByteArray &bytes);
64  static void memzero(QString &text);
65  void authenticate(const QByteArray &salt,
66  const QByteArray &salted_password,
67  const QString &password);
68  void set_authenticated(bool state);
69  void set_block_cipher_type(const QString &block_cipher_type);
70  void set_hash_type(const QString &hash_type);
71  void set_keys(const QByteArray &authentication_key,
72  const QByteArray &encryption_key);
73 
74  private:
75  HashTypes m_hash_type;
76  QByteArray m_authentication_key;
77  QByteArray m_encryption_key;
78  QString m_block_cipher_type;
79  bool m_as_plaintext;
80  bool m_authenticated;
81 };
82 
83 #endif
Definition: dooble_cryptography.h:35